Paper-box stacker and drier.



No. 694,634. Patented Mar. 4, I902.

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PAPER BOX STACKEB AND DRIER.

(Application filed May 11, 1901.)

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George Griswblfl;

No. 694,634. I Patented Mar. 4, I902.

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PAPER BOX STACKER AND DRIER,

(Application filed May 11, 1901.) (No Model.) 4 $heets-Sh'eet 2.

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No. 694,634. R Patented Mar. 4, I902.

G. M. GRISWULD.

PAPER BOX STACKER AND DRIER.

(Application filed May 11, 1901.

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PAPER BOX' STAGKER AND DRIER.

(Application filed May 11, 1901.)

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GEORGE M. GRISWOLD, OF NEW HAVEN, CONNECTICUT.

PAPER-BOX STACKER AND DRIER.

SPEGIFICATIQN forming part of Letters Patent N 0. 694,634, dated March4, 1902.

Application filed May 11, 1901.

To all whom it may concern:

Be it known that I, GEORGE M. GRISVVOLD, a citizen of the UnitedStates,'anda resident of New Haven, in the county of New Haven and Stateof Connecticut, have invented certain new and usefulImprovements inPaper- Box Stackers and Driers, of which the following is aspecification.

My invention relates to new and useful improvements in paper-boxmachinery, and especially to that classknown as stackers or driers, thesame being designed to receive various styles of square and rectangularboxes or tubes of boxes as they are delivered from their respectivestyles of box-- forming machines and to successively close and stackthem one against the other in'a uniform line and in a manner to retainthe folded and glued edges together to insure their drying.

Heretofore the more complete types of square-paper-box machinery havebeen provided with belt conveyers or other complicated and bulky dryingmechanism which retains the glued edges of the boxes in their a foldedposition while drying, so as to prevent them from opening when finallydischarged from the machine? /The drying apparatuses, and particularlythose employing conveyers, have been of an objectionably largeconstruction, consuming zit great amount of floor-space in the shopswhere they are employed, and, furthermore, do not perform the work forwhich they are intended as perfectly as de sired. t

It is therefore the object of my invention to provide a ma ine, whichshall be of a com pact, simple and durable construction adapted to beset up adjacent to various styles of box-forming machinery, in a mannerto receive the successive boxes as they are delivered from suchmachinery in a folded and glued state; to retain the glued edges of thesaid boxes in their relative position; to produce a machine which doesnot have to be operatively connected or timed with the boxmachine withwhich it is to operate; and

. further to provide a device for stacking the boxes one against theother in a compressed form so as to prevent any opening of the seams andto insure the proper drying of said seams. Finally, to do thissufficiently rapid Serial No. 59,823. (No model.)

to receive the entire product of any of the modern types of machines,including those known as the double 7 tube machines em ployed in theproduction of cigarette-boxes. My invention is equally well adapted tocompress and stack tubes as they are received from any of the practicalstyles of refoldersthat is, machines which refold tubes to insure theeasy access thereto of the drawer or I inner member.

.an end view as seen fromthe bottom of Sheet 1,

the legs being broken away. Fig. 3 is a transverse cross-section takenon line 3 3 of Fig. 1,

illustrating the feed-rolls, belts, and trough operating in conjunctiontherewith. Fig. 4 is a detail horizontal sectional plan View through thetwo sets of feed-rolls, as will be later more fully described. Fig. 5shows a perspective View of an end of a tubular member of a box such asis refolded by the re folding-machines referred to and such as mymachine is designed to stack. Figs. 6 and 7 show a plan View andtransverse cross-section of a modified form of my invention, the samebeing a double stacker adapted for use in connection with a double-tubemachine and is designed to stack practically double "the'number of boxesas the previously-described construction.

Fig. 8 is a transverse cross-section of' another form of my invention,the same being adapted for use instacking larger boxes, such asone-pound starchboxes, and in which the employment of belts is dispensedwith.

Referring in detail to the characters of reference marked upon thedrawings, 1 indicates a suitable frame upon which the main bed 2 of mymachine is mounted; 3, the table upon which the boxes are successivelystacked one against the other and retained until dried. The outer edgeof this table may be pivoted, as at 4,'and the inner portion supportedon ICO - appears in Figs. 1 and 2.

adjustable screws 5, located adjacent to either side of the base-plate2, before mentioned. The purpose of this adjustable construction is topermit the table to be raised and lowered to or from the top roll in amanner to accommodate different widths of boxes, as will be apparent.

Upon either end of the base-plate 2 are mounted vertically-disposedplates 6 6, which are substantially alike in construction and upon whichall of the operative parts of my mechanism are mounted. These plates maybe located at any desired distance apart and the intervening train ofmechanism lengthened or shortened to better accommodate differentlengths of boxes, as will later be more apparent.

Power is applied to the machine through the medium of the belt-wheel 7,mounted upon the short shaft 8, journaled on the hearing 9, secured tothe plate 6, and having a beveled pinion 1O uponits opposite end, asclearly This beveled pinion meshes with the bevel-gear 11, mounted upona shaft 12, extending longitudinally of the machine and journaled in thetwo end plates 6, before mentioned. The bevel-gear 11 has securedthereto a plain gear 13, which meshes with a smaller gear 14, mountedupon the reduced end of the roll 15, arranged parallel with the shaft.12, before mentioned, and likewise journaled in the end plates 6. Theserolls are provided with a series of grooves 16 at equal distances apart,the purpose of which will be later described.

Referring to Figs.'3 and 4, it will be seen that upon the shaft 12 ismounted a series of pulleys and disks 17 and 18, respectively, whichcomprise the main features of my feeding device. These pulleys aresubstantially alike in construction and are provided with a set-screw19, by means of which they are secured to the shaft 12, and are furtherprovided with a suitable annular recess 20 to accommodate one of theseries of feeding-belts,which will again be referred to. The oppositeends of said pulley are further recessed, as at 22, to accommodate thehubs on the disks 18, before mentioned. These pulleys are, as beforementioned, firmly secured to the shaft 12 and are spaced at an equaldistance apart to permit the free rotary movement of the disks 19therebetween, which latter in practice are preferably formed ofaluminium and as light as possible to insure their free movement. .Thisseries of pulleys when assembled as shown form the main feeding-roll,the length of which is determined only by the size of machine desired.Said disks 18 are provided with a series of cams 23, having notches 23on one side There may be any desired number of these cams, six beingshown in the main figure, while but four are shown in Fig. 8. Said camsproject out slightly beyond the main body of the roll and in practicefreely pass through the grooves 16 in the coacting roll 15. The notchesof said cams serve to form a pocket, into which the lower edge of thebox rests to insure the proper alinement thereof and to retain and guideit against the stack. As the boxes are moved down the disks areautomatically turned thereby, and their projecting cam-surface serves toshove said stack outward, making room for the successive boxes as theyare delivered, and the notches 23 simultaneously guide the lower edge ofthe box on between the stack and roll or vertically-disposed stripper24. (See Fig. 8.)

Upon the end plates 6 6 is secured a casting 24, having a longitudinalinclined surface 25 and a vertically-disposed post 26 at either end, inwhich a rod 27 is mounted. Adjacent to the bearings of this rod ispivoted an arm 28, the forward end of which has journaled therein aroller 29, serving as an idler,, over which a series of belts 30 travel.These belts also connect with and are driven by the roll 15, beforementioned, adjacent to the inner operative faces of this series ofbelts. A guideplate 31 is provided and forms one side of thereceiving-trough. Said trough serves to deflect the boxes as they arereceived down between the belts and rolls. This guide-plate extendsthrough the length of the machine, its opposite ends being secured toarms 32, attached to a rod 33, the latter being mounted in post 34 ateach end of said rod and secured to end plates 6. Upon this rod 33 Ialso mount a series of arms 35, having suitably-divided free ends tostraddle the belt 30, before mentioned, and serve as a guide for thesame to retain them in their proper relative positions. The tension forthese belts is secured by springs 36 between the rear ends of the arms28 and the plate 6, before mentioned.

To the inclined portion of the castings 24 (see Figs. 1 and 3) I attacha series of adjusts able brackets 37,with rolls 38 mounted in theirupper ends. The series of belts before mentioned as operating in thegrooves 20 of the pulleys 17 travel over the above-mentioned rolls andserve to operate, in connection with the belt 30, to feed the boxes downbetween the rolls and into their respective positions. The slack of thisbelt may be taken up from time to time by means of the adjustableconstruction of the bracket 37, before mentioned, as will be clearlyapparent from Fig. Said brackets 37 are each further provided with apair of guides 39, which extend rearward to either side of the belt andretain the same properly upon the roll, as will be obvious from Figs. 2and 3 of the drawings. A second guideplate 40 is mounted in front of thebolts 21 and, with the guide-plate 31, forms the receivingtrough, whichextends throughout the length of the machine and serves to deflect ICOICS

the boxes downward in between the belts.

This plate is secured at either end by means of screws 41 to the casting24, and the intervening portion of said plate is bent upward slightly toform a space between it and the and automatically moves said disksforward inclined portion of the casting 24 to permit the belt andpulleyto freely pass therethrough.

The disks 18 are each provided with a frictional pawl 42, mounted upon arod 43, secured to the end plate 6. Adjacent to each of thesepawls andsecured'to said rod is a bracket 44, having a pair of arms straddlingsaid pawl and a spring 45 interposed between said arm and pawl to forcethe latter downward against the periphery of the disk. These pawlsimpart a slight resistance to the disks, serving as a brake to prevent atoo freerotation of the same, insuring their alinement one with theother, and prevent any backward movement. 3

In practice my machine would be set up with its rear end against abox-machine with which it is to work,sothat the boxes as delivered fromthe said machine would be fed into the trough of my machine lengthwise.With this'location the forward ends of the boxes would be thrust forwardbetween the guide-plates 31 and 40 so as to strike against theadjustable stop 46 located in the trough, see Figs. 1 and 2 and6,whereupon said box would drop down upon the plate 40 and with theassistance of the plat 3l'be deflected in betweenthe belts. a

In Fig. 7 of the drawings I have shown a machine'adapted to take care ofthe product of a double-tube machine. This form of my in ventioncontains two sets of guide-plates or troughs side by side instead ofone, as in-the other construction, one trough being adapted to feed theboxes between the rolls slightly in advance of the other, thus making itsubstan tially practicable for each-series of notches to take care of abox-as it is fed in.

In Fig.8 I have shown another slight modification, the same beingadapted for shorter but wider boxes wherein a fewer number of cams and astripper 24 which is located adjacent to the lower feed roll and comprises a plain vertical wall with a sharp top edge. In this view the useof belts is also entirely omitted.

Each of the forms of construction shown in these drawings is perfectlypracticable, being to-day in operation, and consequently I do not wishto limit myself in the use of belts or any other details of constructionof the apparatus.

The operation of my machine is as follows: Power is applied to thebelt-wheel 7, which through its shaft and gear imparts a rotary movementto the series of pulleys upon shaft 12. From this shaft and through thegears 13 and 14 the small roll 15 is operated. This roll in turnoperates its series of belts, while the pulleys upon the main shaft arelikewise driving their series of belt's.- 'With this continuousand'rapid movement of the parts the boxes are successively dropped downin between the guides andbelts, striking the notches 23 upon the disks.As the box engages these notches it is straightened out until said boxis grasped by the rolls, which compress and guide said box against thenear side of the previously-stacked boxes. It will be apparent-thatafter the box passes through the rolls the outward edge leaves the notchin the cam of the disk and strikes the top of the table,where itsfurther progress is retarded." I The-boxes are thus landed one againstthe other, the series being gradually shoved outward against theresistance of the block 47, as shown in the several figures of thedrawings. This stack of boxes may be allowed to accumulate to as great aproportion as isnecessary to insure their proper drying before removal,the removal of said boxes being at all times effected from the outeredge. I

Having thus described my invention, what I' claim, and desire to secureby Letters Patent, is-

1. In a box stacking and drying machine, the combination of a pair offeed-rolls, means for guiding the boxes thereto and means for adjustingthe boxes to a uniform'position as they are guided to the feed-rolls,and mechanism for stacking them'one against the other.

in successive order.

2. The combination in a machine for stacking boxes, of a suitablebox-receiving trough, means for guiding boxes from said trough'tofeed-rolls in-a line substantially parallel to said rolls, rolls forcompressing such boxes and means for delivering the boxes one againstthe other and retaining the same in a compressed position. 3.'-In apaper-box stacking and drying device the combination with a pair offeed-rolls, of notched disks for guiding boxes thereto, a tableuponwhich the boxes 'are received and cams for guiding the boxes from saidrolls to the table and shoving the previously-stacked boxes outwardtomake room for the boxes to be delivered. I r I 4. Ina box-stackin gdevice of the class de scribed, the combination with a pair of feed'-'rolls and means'for guiding boxes thereto, of a device upon theroll-shaft to be engaged'by the boxes, to guide it uniformly into saidrolls and provided with means to shove the previously-stacked boxesoutwardm'aking room for and leading the new boxes into position wherethey are successively stacked.

5. The combination in a box-stacking devi'ce,of means to receive anddeflect the boxes into the path of operation, a pair of feed-rolls toreceive said boxes and compress the same, a disk upon the roll-shaftadapted to deliver the boxes from the rolls to a table in theisuccessive orders. 6. The combination in a box-stacking device, of meansto receive and-guide'boxes into the path of operation, of a pair offeedrolls to receive, compress and deliver the boxes, a disk in linewith one of the rolls having'notched cam-surfaces thereon to engage andaline the boxes and to guide the succes sive finished boxes forwardand'deposit them against the stack.

7. In a box'staeking and drying machine, the combination with a pair offeed-rolls, of means to receive and deliver boxes thereto, disks on theaxial line of one of said rolls and having notches therein to receiveand aline the boxes as they are fed through the rolls, cam-surfaces uponsaid disks to engage and force the previously-stacked boxes outward tomake room for the additional boxes as they are guided to and deliveredagainst said stack.

8. The combination in a box stacking and drying device, of a pair offeed-rolls one of which is formed in sections, disks intermediate of thesections having notched cam-surfaces thereon to automatically receiveand guide a box through its line of operation.

9. The combination in a box drying and stacking device, of a pair offeed-rolls, disks having notches for alining and feeding boxes to saidrolls, a table upon which said boxes are delivered and means forsuccessively shoving the boxes outward with each delivery.

10. A paper-box stacking and drying machine, comprising a pair offeed-rolls, means for guiding glued boxes thereto, a series of disksoperating in conjunction with said rolls vhaving a series of notchesthereon to be engaged by the boxes as they are fed to the rolls, acam-surface upon the disk adjacent to the notches adapted to travel inadvance of the box and shove the stack out to form a space for deliveryand a table upon which said boxes are stacked.

11. The combination in a box stacking and drying apparatus, of a tableupon which the boxes are delivered and stacked,a pair of rolls adjacentthereto, means for adjusting the table to and from the rolls toaccommodate different heights of boxes, means for feeding the boxes tosaid rolls mechanism for guiding and delivering boxes from the rolls tothe table and arranging them snugly against one another.

12. The combination in a paper-box-stacking device, of a pair of rolls,a table adjacent thereto to receive the boxes as they are delivered fromthe rolls, means for adjusting the table to and from the rolls andmechanism for guiding the boxes through the rolls and delivering themone against the other in a uniform line upon the table.

13. The combination in apaper-box-stacking device, of a pair offeed-rolls, a table adjacentthereto,disksfor-guiding boxes through therolls and delivering them one against the other upon the table, a weightto ride against the outer side of the boxes adapted to slide outwardwith the successive accumulation of the boxes to the inner edge.

14. The eombinationinapaper-box stacker, of a pair of feed-rolls adaptedto compress and move boxes forward for delivery, a series of disksoperating in conjunction with said rolls having lugs thereon to insurethe proper set forth.

16. In a machine of the class described, the combination of a pair offeed-rolls-one of which is formed in sections, disks loosely interposedbetween said sections having a se- I ries of peripheral projectionsthereon, annular recesses in the coacting roll to accommodate saidprojections, the whole arranged to operate as andfor the purposespecified.

17. In a paper-box stacking device,the combination of a pair offeed-rolls, one of which is formed in sections, a series of disksloosely mounted between said sections, a series of peripheral cams withnotches upon said disks extending out slightly beyond the surface of themain portion of the roll in a manner to be engaged by the boxes as theyare fed over said roll, frictional pawls to engage the periphery of saiddisks in a manner to afford a resistance to the forward movement and toinsure the proper alinement of the notches upon the several disks, thewhole arranged to operate substantially as and for the purposedescribed.

18. The combination in a paper-box-stacking device of a pair offeed-rolls with means for guiding folded boxes thereto, a series ofdisks operating in conjunction with said rolls having notched lugsthereon to engage and guide the boxes through the rolls and against thepreviously-stacked boxes, a stripper to separate the box from the rollsas it is being delivered.

19. Ina paper-box-staekingdevice,the combination with a pair offeed-rolls, of means for delivering compressed boxes therefrom to thestack, of a pair of belts for feeding the boxes to said rolls andshields to deflect boxes as they are received into said belt.

20. The combination with a pair of feedrolls, of cams upon the feed-rollshafts for delivering boxes therefrom to the stack, a series of beltsupon each roll to feed the boxes thereto, and means for adjusting thetension of said belts substantially as described.

21. The combination with a pair of feedrolls, of cams upon the feed-rollshaft for delivering boxes therefrom to the stack, a series of beltsupon each roll to feed the boxes thereto,.means foradjusting the tensionof said belts substantially as shown, and guides to retain the belts intheir relative positions.

22. The combination with a pair of feedrolls, of means for deliveringboxes therefrom to the stack, a series of belts upon each roll to feedthe boxes thereto, guides to retain the belts in their relativepositions, inclined defleeting-plates between the belts to guide theboxes thereto.

23. The combination in a paper-box-stacking device, of a pair offeed-rolls, means for delivering compressed boxestherefrom to a stack, atrough to receive said boxes and guide them into the rolls, anadjustable stop arranged transverselyof said trough to guide the end ofthe box to the rolls in a uniform line. A

24. The combination in a paper-box-staoking device, of 'a pair offeed-rolls to compress and deliver the boxes to. a stack, notcheddisksto insure a parallel position of the boxes with the rolls as theypasstherethrough, a pair of troughs to receive glued boxes and deliverthem to differentsides of the feedrolls, substantially as shown anddescribed.

25. The combination of afeed-roll for paper-box stackers, of a shaft, aseries of pulleys secured thereto at substantially aneqnal distanceapart, a series-of disks arranged loosely between said pulleys andprovided with a series of peripheral notches having a forwardcam-surface.

26. The combination in a paper-box-stacking machine, of a pair offeed-rolls, means for delivering folded boxes thereto, mechanism fordelivering said boxes from said rolls to a stack, a pair of gearsinterposed between- GEORGE M. GRISWOLD.

Witnesses:

C. M. NEWMAN, II. J. HERMAN.

